287800060 has 48 divisors (see below), whose sum is σ = 642166560. Its totient is φ = 108138240.

The previous prime is 287800043. The next prime is 287800109. The reversal of 287800060 is 60008782.

It is a junction number, because it is equal to n+sod(n) for n = 287799995 and 287800031.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14755 + ... + 28165.

It is an arithmetic number, because the mean of its divisors is an integer number (13378470).

Almost surely, 2^287800060 is an apocalyptic number.

287800060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 287800060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (321083280).

287800060 is an abundant number, since it is smaller than the sum of its proper divisors (354366500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

287800060 is a wasteful number, since it uses less digits than its factorization.

287800060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13486 (or 13484 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 287800060 is about 16964.6709369796. The cubic root of 287800060 is about 660.2325932585.

The spelling of 287800060 in words is "two hundred eighty-seven million, eight hundred thousand, sixty".